Inorganic nanocrystalline and hybrid nanocrystalline particles (Gamma-Fe2O3/PPY) and their contribution to electrode materials for lithium batteries
Nanoscale materials offer the advantage of combining structural effects (inside grain structure) with surface effects or grainboundary effects. Therefore, the electrochemistry of this type of materials is very different from that of traditional microcrystalline ones mainly due to the contribution of...
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| Veröffentlicht in: | Journal of the Electrochemical Society 2004, Vol.151 (9), p.A1445-A1449 |
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| container_end_page | A1449 |
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| container_issue | 9 |
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| container_title | Journal of the Electrochemical Society |
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| creator | KWON, C. W QUINTIN, M MORNET, S BARBIERI, C DEVES, O CAMPET, G DELVILLE, M. H |
| description | Nanoscale materials offer the advantage of combining structural effects (inside grain structure) with surface effects or grainboundary effects. Therefore, the electrochemistry of this type of materials is very different from that of traditional microcrystalline ones mainly due to the contribution of the 'surface defects' allowing strong coulombic interactions between the inserted lithium ions and the surface ions called 'electrochemical grafting'. When electrochemical grafting is the first electrochemical step to take place, it can favor the power density and the cycling life of electrode materials. As illustrative examples, electrochemical behaviors of nanocrystalline oxides such as LiMn2O4, gamma-Fe2O3, and of nanohybrid inorganic-organic materials such as gamma-Fe2O3 /PPY (PPY = polypyrrole) are presented. |
| doi_str_mv | 10.1149/1.1780131 |
| format | Article |
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| source | IOP Publishing Journals |
| subjects | Applied sciences Chemical Sciences Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Exact sciences and technology Material chemistry |
| title | Inorganic nanocrystalline and hybrid nanocrystalline particles (Gamma-Fe2O3/PPY) and their contribution to electrode materials for lithium batteries |
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